regulator: qcom: Don't enable DRMS in driver

The driver itself should not flag regulators as being DRMS compatible,
this should come from board or dt files.

Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Mark Brown <broonie@kernel.org>